body, ul, h1, h2, h3, h4, h5, h6 {
    /*取消浏览器内间距  外间距*/
    margin: 0; /*外间距*/
    padding: 0;
}

/*====================1. 头部导航========================*/
.nav {
    width: 100%;
    height: 58px;
    min-width: 1400px;
    /* background-color: gray;*/
}

/*图片logo*/
.nav .head-logo {
    width: 120px;
    height: 34px;
    /* background-color: skyblue;*/
    position: relative; /*相对原来的位置*/
    top: 12px;
    margin-left: 120px;
    margin-right: 20px;
    float: left;

}

.nav .head-logo a {
    display: inline-block;
    width: 100%;
    height: 100%;
    background: url("../images/header-small-sprites3.png");
}

/*导航*/
.nav .head-nav {
    width: 726px;
    height: 100%;
    /*background-color: sandybrown;*/
    float: left;
    min-width: 750px;
}

.head-nav ul {
    list-style: none; /*去除小黑点*/
    height: 100%;
}

.head-nav ul li {
    float: left; /*每个li 不换行*/
    width: 90px;
    height: 100%;
    border-right: 1px solid white;
    /*  background-color: springgreen;*/
}

/*设置 导航每个菜单的超链接a 宽度高度：
    a ： 本身是 行内元素  --- 转换成 行内块级元素
*/
.head-nav ul li a {
    display: inline-block;
    width: 100%;
    height: 100%;
    /* background-color: salmon;*/
    color: #393939;
    text-align: center; /*水平居中*/
    line-height: 58px; /*垂直居中*/
    text-decoration: none; /*去除下划线*/
    font-size: 14px;
}

/*导航第一个菜单的样式*/
.head-nav ul li:first-child {
    background-color: #ff9d00;

}

.head-nav ul li a.first-item {
    color: white;
}

.head-nav ul li a.first-item:hover {
    background-color: #ff9d00;
    color: white;
    border: none;
}

.head-nav ul li a:hover {
    color: #ff9d00;
    border-bottom: 2px solid #ff9d00;
}

/*登录区域*/
.nav .head-login {
    width: 300px;
    height: 100%;

    float: right;
}

.head-login a {
    display: inline-block;
    width: 100px;
    height: 26px;
    margin-top: 16px /*距离top 16px*/
}

.head-login .login-logo {
    /*span 行内元素*/
    display: block;
    float: left;
    width: 26px;
    height: 26px;
    /* background-color: springgreen;*/

}

.head-login .login-title {
    display: block;
    float: left;
    width: 50px;
    height: 26px;
    font-size: 10px;
    color: #ff9d00;
    line-height: 26px;
    text-align: center;
    /* background-color: yellow;*/
}

.head-login .regist-logo {
    background: url("../images/guanzhu.svg");
}

.head-login .regist-logo:hover {
    background: url("../images/guanzhu-hover.svg");
}

/*====================2. 横幅 banner========================*/
.banner {
    width: 100%;
    height: 450px;
    background-color: slateblue;
}

.banner .show-img {
    display: block;
    width: 100%;
    height: 100%;
}

.banner .show-img img {
    width: 100%;
    height: 100%;
}

/*横幅右侧的小图片导航*/
.banner .show-nav {
    width: 110px;
    height: 340px;
    /* background-color: sandybrown;*/
    position: absolute;
    top: 100px;
    right: 40px;
    list-style: none; /*去除无序列表的小黑点*/

}

.banner .show-nav li {
    width: 100%;
    height: 62px;
    /* background-color: skyblue;*/
    margin-bottom: 5px;
}

.banner .show-nav li a {
    display: block;
    width: 100%;
    height: 100%;
}

.banner .show-nav a img {
    width: 100%;
    height: 100%;
}

.banner .show-nav li a:hover {
    border: 2px solid #ff9d00;
}

/*横幅中间的搜索区域*/
.banner .search-area {
    width: 500px;
    height: 90px;
    background-color: rgba(0, 0, 0, .6);
    border-radius: 4px;
    position: absolute;
    left: 35%;
    top: 300px
}

.search-form {
    width: 80%;
    height: 36px;
    /* background-color: springgreen;*/
    margin: 0 auto;
    position: relative;
    top: 20px;

}

/*单行文本框*/
.search-form .keyword {
    width: 300px;
    height: 100%;
    border: none;
    border-radius: 5px;
    padding-left: 10px;
    outline: none;
    float: left;
    margin-right: 10px;
}

.search-form .search-btn {
    display: inline-block;

    width: 38px;
    height: 38px;
    background-color: #ff9d00;
    background-image: url("../images/search.svg");
    border: none;
    border-radius: 5px;
    float: left;
}

/*======================3.主要内容 main===========================*/
.main {
    width: 80%;
    height: 1500px;
    margin: 0 auto; /*div 在父容器居中*/

}

/*左侧推广*/
.main .aside-ad {
    width: 25%;
    height: 100%;
    background-color: salmon;
    float: left;
}

.aside-ad ul {
    width: 100%;
    height: 100%;
    list-style: none;
}

.aside-ad ul li {
    width: 100%;
    height: 246px;
    background-color: gray;
    margin-bottom: 10px;
}

.aside-ad .ad-item h2 {
    width: 100%;
    height: 35px;
    font-size: 18px;
    color: #333;
    background-color: skyblue;
    line-height: 35px;
    font-weight: normal;
}

/*右边游记列表*/
.main .right-note-list {
    width: 70%;
    height: 100%;
    background-color: salmon;
    float: right;
}

/*========================4.底部footer======================*/
.footer {
    width: 100%;
    height: 450px;
    background-color: darkgray;
}